Aluminum alloy integrated transverse handle and vertical rod structure of road vehicle

Abstract

The utility model discloses an aluminum alloy integrated transverse handle vertical rod structure of a road vehicle. A front fork vertical rod connecting sleeve which can be fixedly connected with a front fork vertical rod is formed at one end of an integrated vertical rod; the end portion of a left cross rod at the right end of the left handlebar and the end portion of a right cross rod at the left end of the right handlebar are inserted into a left handlebar inserting groove and a right handlebar inserting groove in the left side and the right side of the other end of the integrated vertical rod respectively, and cavities communicated with the bottom face of the left handlebar inserting groove and the bottom face of the right handlebar inserting groove respectively are formed in the inner side of the integrated vertical rod. When the integrated vertical rod is used, the side face, facing the ground, of the integrated vertical rod is further provided with a hollowed-out notch communicated with the cavity, and the circumferential outer side faces of a left transverse rod of the left handlebar and a right transverse rod of the right handlebar are fixedly welded to the opening end faces of the left handlebar inserting groove and the right handlebar inserting groove. According to the bicycle handlebar, the angle accuracy of the left handlebar and the right handlebar is guaranteed, the handlebar angle is always the best angle when a user rides a bicycle, and the appearance of a bicycle head is simple and attractive.

Description

Technical Field

[0001] This utility model relates to a bicycle, and more particularly to a road bike aluminum alloy integrated handlebar and vertical bar structure. Background Technology

[0002] Many bicycles currently use a split headstock structure, consisting of a stem and handlebars. The handlebars are formed by bending tubing, while the stem is die-cast to create the main body and connecting section. During assembly, four screws are used to join the main body and connecting section, and the handlebars are clamped together to complete the headstock assembly. This assembly structure makes it difficult to control the precision of the assembly position and angle. When riding, the grip angle is affected by the assembly precision of the stem and handlebars, resulting in an inadequate riding angle and potentially causing discomfort for the rider.

[0003] Furthermore, this type of handlebar structure results in both the brake cable and the gear cable being on the outside of the handlebars. When the left and right handlebar straps are wrapped around the brake cable, they are covered together with the left and right handlebars. However, the left and right handlebar straps cannot completely cover the brake cable, leaving a large part of the brake cable exposed, resulting in an unsightly and unattractive appearance of the finished vehicle.

[0004] In addition, the existing handlebars do not have a location for installing a brake conversion adapter, so they can only have mechanical brakes or hydraulic brakes. They cannot achieve the function of switching from mechanical to hydraulic brakes, which means that they cannot reduce the overall cost of the vehicle while achieving hydraulic braking performance.

[0005] When assembling a bicycle, the handlebars and stem need to be assembled, and because the assembly requires high precision and repeated adjustments, the assembly cost increases, manpower is wasted, and the overall assembly efficiency is affected. Summary of the Invention

[0006] To overcome the above deficiencies, this utility model provides a one-piece aluminum alloy handlebar and stem structure for road bikes. This one-piece aluminum alloy handlebar and stem structure enables low-cost and high-efficiency manufacturing of bicycle handlebars, ensures the overall strength of the bicycle handlebars, and ensures that the handlebar angle is always at the optimal angle when riding the bicycle.

[0007] The technical solution adopted by this utility model to solve its technical problem is: a one-piece aluminum alloy handlebar stem structure for road bikes, including an integrated stem, a left handlebar, and a right handlebar. One end of the integrated stem forms a front fork stem connecting sleeve that can be fixedly connected to the front fork stem. The other end of the integrated stem has symmetrical left and right handlebar slots on its left and right sides. The inner side of the integrated stem has cavities that communicate with the bottom surfaces of the left and right handlebar slots, respectively. When in use, the side of the integrated stem facing the ground also has a hollow notch that communicates with the cavities. The left end of the left handlebar forms a curved left grip. The right end of the left handlebar forms a horizontally extending left crossbar, the right end of the right handlebar forms a curved right grip, and the left end of the right handlebar forms a horizontally extending right crossbar. The ends of the left crossbar of the left handlebar and the right crossbar of the right handlebar are respectively inserted into the left and right handlebar slots of the integrated vertical bar. The opening end face of the left handlebar slot of the integrated vertical bar is fixed to the outer circumference of the left crossbar, and the inner side wall of the cavity of the integrated vertical bar is fixed to the end face of the left crossbar by welding. The opening end face of the right handlebar slot of the integrated vertical bar is fixed to the outer circumference of the right crossbar, and the inner side wall of the cavity of the integrated vertical bar is fixed to the end face of the right crossbar by welding.

[0008] As a further improvement of this utility model, the left crossbar of the left handlebar and the right crossbar of the right handlebar are both hollow tubular structures, and the inner diameter of the left and right crossbars is smaller than the inner diameter of the left and right ends of the cavity of the integrated vertical bar.

[0009] As a further improvement of this utility model, the left outer weld between the left handlebar slot end face and the outer circumference of the left crossbar, the right outer weld between the right handlebar slot end face and the outer circumference of the right crossbar, the left inner weld between the left crossbar end face and the inner circumference of the cavity, and the right inner weld between the right crossbar end face and the inner circumference of the cavity are all formed into smooth transition joint surfaces by grinding.

[0010] As a further improvement of this utility model, a left stress relief notch with a notch structure is formed on the end side wall of the left crossbar, and a right stress relief notch with a notch structure is formed on the end side wall of the right crossbar. The inner sides of the left and right handle slots of the integrated vertical bar are respectively provided with a left protrusion and a right protrusion. The left protrusion can be inserted into the left stress relief notch, and the right protrusion can be inserted into the right stress relief notch.

[0011] As a further improvement of this utility model, the left and right crossbars are respectively provided with a left cable inlet and a right cable inlet communicating with their inner holes. The left brake cable of the brake installed on the left handlebar can enter the left crossbar through the left cable inlet and extend out through the hollow notch on the side wall of the integrated vertical rod cavity. The right brake cable of the brake installed on the right handlebar can enter the right crossbar through the right cable inlet and extend out through the hollow notch on the side wall of the integrated vertical rod cavity.

[0012] As a further improvement of this utility model, a mechanical brake lever and hydraulic disc adapter are also fixedly installed inside the integrated vertical rod cavity. The mechanical brake lever and hydraulic disc adapter is provided with a left brake cable through hole and a right brake cable through hole. A left cable clamp is provided at the right end of the left brake cable through hole, and a right cable clamp is provided at the right end of the right brake cable through hole. The left cable clamp can clamp and fix the left brake cable inserted from the left end of the left brake cable through hole, and the right cable clamp can clamp and fix the right brake cable inserted from the right end of the right brake cable through hole. The mechanical brake lever and hydraulic disc adapter is also provided with a front disc brake pipe and a rear disc brake pipe. The front disc brake pipe is connected to the right brake cable through hole, and the rear disc brake pipe is connected to the left brake cable through hole. Pulling the left brake cable can drive the rear disc brake pipe to perform hydraulic disc braking, and pulling the right brake cable can drive the front disc brake pipe to perform hydraulic disc braking.

[0013] As a further improvement of this utility model, the hollowed-out sidewall of the integrated vertical rod cavity is formed with a left protrusion, a right protrusion, a front contoured contact surface, and a rear contoured contact surface. A connecting post is fixedly formed on the bottom surface of the integrated vertical rod cavity opposite to the hollowed-out notch. The connecting post is provided with at least two connecting screw holes. The mechanical brake lever and hydraulic disc adapter can be inserted into the cavity of the integrated vertical rod through the hollowed-out notch. The left and right protrusions can respectively abut against the left and right sidewalls of the mechanical brake lever and hydraulic disc adapter. The front contoured contact surface and the rear contoured contact surface can respectively abut against the front and rear sidewalls of the mechanical brake lever and hydraulic disc adapter. The mechanical brake lever and hydraulic disc adapter are provided with at least two through holes spaced apart. A connecting screw is inserted into each through hole. The connecting screw is screwed into the connecting screw hole on the connecting post to fix and position the mechanical brake lever and hydraulic disc adapter.

[0014] As a further improvement of this utility model, an opening slit extending squarely along its generatrix is ​​formed on the side wall of the front fork steer connecting sleeve. A notch extending squarely along its circumference is also provided on the side wall of the front fork steer connecting sleeve. The notch and the opening slit intersect perpendicularly to form a cross-shaped structure. The notch divides the side wall of the front fork steer connecting sleeve located on both sides of the opening slit into upper and lower sections. Locking threaded holes are formed on the two side wall sections of the front fork steer connecting sleeve located on one side of the opening slit, and locking through holes are formed on the two side wall sections of the front fork steer connecting sleeve located on the other side of the opening slit. Locking screws are inserted into the locking through holes and are movably screwed into the locking threaded holes. Rotating the locking screws can adjust the inner diameter of the front fork steer connecting sleeve, thereby clamping or loosening the front fork steer inserted therein.

[0015] As a further improvement of this utility model, the integrated vertical bar, left handlebar and right handlebar are all integrally formed aluminum alloy structures.

[0016] As a further improvement of this utility model, the surface of the integrated structure formed by welding the one-piece vertical bar with the left and right handlebars is covered with a surface treatment layer.

[0017] The beneficial technical effects of this utility model are as follows: This utility model divides the bicycle handlebars into a T-shaped integrated vertical bar and left and right handlebars, and welds the three together to form an integrated structure. This integrated structure of the handlebars avoids the need to assemble the handlebars and vertical bar with screws later, reducing assembly costs. Moreover, this integrated structure of the handlebars ensures the positional accuracy of the left and right handlebars with the integrated vertical bar, as well as the angle accuracy of the left and right grips, so that the handlebar angle is always at the optimal angle when riding the bicycle, ensuring riding comfort. In addition, the handlebars of this utility model also have a cable threading structure, which facilitates the threading of the brake cable and hides the brake cable inside the handlebars, making the handlebars simple and beautiful in appearance. Attached Figure Description

[0018] Figure 1 This is a front view of the left handlebar of this utility model;

[0019] Figure 2 This is a right view of the left handlebar of this utility model;

[0020] Figure 3 This is a front view of the right handlebar of this utility model;

[0021] Figure 4 This is a bottom view of the right handlebar of this utility model;

[0022] Figure 5 This is a right view of the right handlebar of this utility model;

[0023] Figure 6 This is a front view of the integrated vertical rod of this utility model;

[0024] Figure 7 This is a bottom view of the integrated vertical rod of this utility model;

[0025] Figure 8 This is a right view of the integrated vertical rod of this utility model;

[0026] Figure 9 This is the front view of the present invention;

[0027] Figure 10 This is a bottom view of the present invention;

[0028] Figure 11 This is the right view of the present invention;

[0029] Figure 12 This is a front view of the mechanical brake lever and hydraulic disc adapter of this utility model;

[0030] Figure 13 This is a bottom view of the mechanical brake lever and hydraulic disc adapter of this utility model;

[0031] Figure 14 This is a left view of the mechanical brake lever and hydraulic disc adapter of this utility model. Detailed Implementation

[0032] Example: A one-piece aluminum alloy handlebar stem structure for road bikes includes an integrated stem 1, a left handlebar 2, and a right handlebar 3. One end of the integrated stem 1 forms a fork stem connecting sleeve 11 that can be fixedly connected to the fork stem. The other end of the integrated stem 1 has symmetrical left and right handlebar slots 12 and 13. The inner side of the integrated stem 1 has cavities 14 that communicate with the bottom surfaces of the left and right handlebar slots 12 and 13, respectively. The side of the integrated stem 1 facing the ground when in use also has a hollow notch 15 that communicates with the cavity 14. The left end of the left handlebar 2 forms a curved left grip 21, and the right end of the left handlebar 2 forms a laterally extending left crossbar. 22. The right end of the right handlebar 3 forms a curved right grip 31, and the left end of the right handlebar 3 forms a horizontally extending right crossbar 32. The ends of the left crossbar 22 of the left handlebar 2 and the right crossbar 32 of the right handlebar 3 are respectively inserted into the left handlebar slot 12 and the right handlebar slot 13 of the integrated vertical rod 1. The opening end face of the left handlebar slot 12 of the integrated vertical rod 1 is fixed to the outer circumference of the left crossbar 22, and the inner wall of the cavity 14 of the integrated vertical rod 1 is fixed to the end face of the left crossbar 22 by welding. The opening end face of the right handlebar slot 13 of the integrated vertical rod 1 is fixed to the outer circumference of the right crossbar 32, and the inner wall of the cavity 14 of the integrated vertical rod 1 is fixed to the end face of the right crossbar 32 by welding.

[0033] The front of the road bicycle is divided into a one-piece vertical bar 1, a left handlebar 2, and a right handlebar 3. The one-piece vertical bar 1 forms a T-shaped structure, with a fork vertical bar connector 11 at one end for fixing it to the bicycle's fork vertical bar. The other end has left and right handlebar slots 12 and 13 respectively for the left crossbar 22 of the left handlebar 2 and the right crossbar 32 of the right handlebar 3 to be inserted and positioned. Then, the left crossbar 22 of the left handlebar 2 and the right crossbar 32 of the right handlebar 3 are fixedly welded to the one-piece vertical bar 1, both inside and out. The one-piece vertical bar 1 has a cavity 14 inside, and a notch 15 is formed on the side wall of the cavity 14 facing the ground. During welding, the welding torch can be inserted through the notch 15 to weld the left crossbar 22, the right crossbar 32, and the one-piece vertical bar. Inner layer welding is performed, allowing the left handlebar 2 and right handlebar 3 to be welded to the integrated vertical bar not only on the outer layer but also on the inner layer. This double-layer welding greatly improves the connection strength between the left handlebar 2, right handlebar 3 and the integrated vertical bar. After welding, the left handlebar 2, right handlebar 3 and integrated vertical bar 1 form an integrated structure. This structure avoids the need for later assembly of the front of the vehicle with screws, ensuring that the angles of the left grip 21 and right grip 31 of the left handlebar 2 and right handlebar 3 are always in the optimal angle position, which is beneficial to meeting the user's riding comfort. At the same time, avoiding assembly with screws makes the overall structure of the front of the vehicle look smoother, the overall structure is simpler and more beautiful, and later assembly is more convenient, which helps to improve the assembly efficiency of the whole vehicle and reduce the assembly cost.

[0034] The left crossbar 22 of the left handlebar 2 and the right crossbar 32 of the right handlebar 3 are both hollow tubular structures, and the inner diameter of the left crossbar 22 and the right crossbar 32 is smaller than the inner diameter of the left and right ends of the cavity 14 of the integrated vertical rod 1. This structure makes the overall weight of the left handlebar 2 and the right handlebar 3 lighter, and facilitates the welding of the left and right crossbars 32 to the inner wall of the cavity 14 of the integrated vertical rod 1.

[0035] The left outer weld 4 between the end face of the left handlebar slot 12 and the outer circumference of the left crossbar 22, the right outer weld 5 between the end face of the right handlebar slot 13 and the outer circumference of the right crossbar 32, the left inner weld 6 between the end face of the left crossbar 22 and the inner circumference of the cavity 14, and the right inner weld 7 between the end face of the right crossbar 32 and the inner circumference of the cavity 14 are all polished to form smooth transition surfaces. After precision grinding, the surfaces of the left outer weld 4 and the right outer weld 5 are smooth, making the left handlebar 2, the right handlebar 3, and the integrated vertical bar 1 form a perfect integrated structure, which is beneficial to the overall aesthetics of the front of the vehicle.

[0036] The left crossbar 22 has a notched left stress-relief notch 23 on its end sidewall, and the right crossbar 32 has a notched right stress-relief notch 33 on its end sidewall. The inner surfaces of the left handlebar slot 12 and right handlebar slot 13 of the integrated vertical bar 1 are respectively provided with a left protrusion and a right protrusion. The left protrusion can be inserted into the left stress-relief notch 23, and the right protrusion can be inserted into the right stress-relief notch 33. By providing the left stress-relief notch 23 and the right stress-relief notch 33 at the ends of the left crossbar 22 and the right crossbar 32, precise insertion and positioning of the left crossbar 22 and the right crossbar 32 on both sides of the integrated vertical bar 1 can be achieved, ensuring the angular accuracy of the left handlebar 21 and the right handlebar 31. Furthermore, during welding, the left stress-relief notch 23 and the right stress-relief notch 33 can release the internal stress generated by the heat deformation of the material during welding, preventing handlebar deformation and ensuring welding strength, thus avoiding later weld cracking or breakage.

[0037] The left crossbar 22 and right crossbar 32 are respectively provided with a left cable inlet 24 and a right cable inlet 34 communicating with their inner holes. The left brake cable installed on the left handlebar 2 can enter the left crossbar 22 through the left cable inlet and extend out through the hollow notch 15 on the side wall of the cavity 14 of the integrated vertical bar 1. The right brake cable installed on the right handlebar 3 can enter the right crossbar 32 through the right cable inlet 34 and extend out through the hollow notch 15 on the side wall of the cavity 14 of the integrated vertical bar 1. The left and right brake cables of the brake devices later assembled on the left handlebar 2 and right handlebar 3 can be inserted into the cavity 14 of the integrated vertical bar 1 through the left cable inlet 24 and the right cable inlet 34, and then pass out through the hollow notch 15 on the lower side of the integrated vertical bar 1 and directly enter the front fork vertical bar, thus hiding the left and right brake cables and making the bicycle cleaner and more beautiful.

[0038] The integrated vertical rod 1 cavity 14 is also fixedly installed with a mechanical brake lever and hydraulic disc adapter 8. The mechanical brake lever and hydraulic disc adapter 8 is provided with a left brake cable through hole 81 and a right brake cable through hole 82. The right end of the left brake cable through hole 81 is provided with a left cable clamp 83, and the right end of the right brake cable through hole 82 is provided with a right cable clamp 84. The left cable clamp 83 can clamp and fix the left brake cable inserted from the left end of the left brake cable through hole 81, and the right cable clamp 84 can clamp and fix the right brake cable inserted from the right end of the right brake cable through hole 82. The mechanical brake lever and hydraulic disc adapter 8 is also provided with a front disc brake pipe 85 and a rear disc brake pipe 86. The front disc brake pipe 85 is connected to the right brake cable through hole 82, and the rear disc brake pipe 86 is connected to the left brake cable through hole 81. Pulling the left brake cable can drive the rear disc brake pipe 86 to perform hydraulic disc braking, and pulling the right brake cable can drive the front disc brake pipe 85 to perform hydraulic disc braking. A mechanical brake lever and hydraulic disc brake adapter 8 is fixedly installed within the cavity 14 of the integrated vertical rod 1. This adapter 8 allows the mechanical brake lever to be converted to a hydraulic disc brake, achieving hydraulic braking performance. Furthermore, its concealment within the cavity 14 of the integrated vertical rod 1 facilitates switching between the left and right brake cables within this cavity. Additionally, it does not occupy external space at the front of the vehicle, enhancing its aesthetics.

[0039] The hollow notch 15 of the integrated vertical rod 1 cavity 14 has a left protrusion 16, a right protrusion 17, a front contoured contact surface, and a rear contoured contact surface formed on its side wall. A connecting post 18 is fixedly formed on the bottom surface of the integrated vertical rod 1 cavity 14 opposite to the hollow notch 15. The connecting post 18 is provided with at least two connecting screw holes 19. The mechanical brake lever and hydraulic disc adapter 8 can be inserted into the cavity 14 of the integrated vertical rod 1 through the hollow notch 15. The left protrusion 16 and the right protrusion 17 can respectively abut against the left and right side walls of the mechanical brake lever and hydraulic disc adapter 8. The front contoured contact surface and the rear contoured contact surface can respectively abut against the front and rear side walls of the mechanical brake lever and hydraulic disc adapter 8. The mechanical brake lever and hydraulic disc adapter are provided with at least two through holes spaced apart. Each through hole is provided with a connecting screw. The connecting screws are screwed into the connecting screw holes 19 on the connecting post 18 to fix and position the mechanical brake lever and hydraulic disc adapter 8.

[0040] The fork steerable connecting sleeve 11 has an opening slit 111 extending squarely along its generatrix on its side wall. The fork steerable connecting sleeve 11 also has a notch 112 extending squarely along its circumference on its side wall. The notch 112 intersects the opening slit perpendicularly to form a cross-shaped structure. The notch 112 divides the side wall of the fork steerable connecting sleeve 11 on both sides of the opening slit 111 into upper and lower sections. Locking threaded holes 113 are formed on the two side wall sections of the fork steerable connecting sleeve 11 on one side of the opening slit 111, and locking through holes 114 are formed on the two side wall sections of the fork steerable connecting sleeve 11 on the other side of the opening slit 111. Locking screws are inserted into the locking through holes 114 and are movably screwed into the locking threaded holes 113. Rotating the locking screws can adjust the inner diameter of the fork steerable connecting sleeve 11, thereby clamping or loosening the fork steerable inserted therein. When assembling the front end onto the front fork steerer, simply slip the front fork steerer connecting sleeve 11 onto the front fork steerer, and then tighten the upper and lower sections of the front fork steerer connecting sleeve 11 separately using the locking screws. This structure, through its upper and lower sections, ensures the locking stability between the front fork steerer connecting sleeve 11 and the front fork steerer, preventing the front end from slipping under pressure during riding.

[0041] The integrated vertical bar 1, left handlebar 2, and right handlebar 3 are all integrally formed aluminum alloy structures.

[0042] The integrated vertical bar 1, left handlebar 2, and right handlebar 3 are welded together to form a single structure, and the surface is covered with a surface treatment layer. The surface treatment layer can be a surface oxidation treatment layer, a paint layer, etc., to improve the overall appearance and wear resistance of the vehicle.

Claims

1. A one-piece aluminum alloy handlebar and vertical bar structure for road bikes, characterized in that: The bicycle includes an integrated vertical rod (1), a left handlebar (2), and a right handlebar (3). One end of the integrated vertical rod forms a front fork vertical rod connecting sleeve (11) that can be fixedly connected to the front fork vertical rod. The other end of the integrated vertical rod has a left handlebar slot (12) and a right handlebar slot (13) symmetrically arranged on the left and right sides. The inner side of the integrated vertical rod has a cavity (14) that communicates with the bottom surface of the left handlebar slot and the bottom surface of the right handlebar slot, respectively. When in use, the side of the integrated vertical rod facing the ground also has a hollow notch (15) that communicates with the cavity. The left end of the left handlebar forms a curved left grip (21), and the right end of the left handlebar forms a horizontal grip. The extended left crossbar (22) forms a curved right grip (31) at the right end of the right handlebar, and a laterally extended right crossbar (32) at the left end of the right handlebar. The ends of the left crossbar of the left handlebar and the right crossbar of the right handlebar are respectively inserted into the left and right handlebar slots of the integrated vertical bar. The opening end face of the left handlebar slot of the integrated vertical bar is fixed to the outer circumference of the left crossbar, and the inner wall of the cavity of the integrated vertical bar is fixed to the end face of the left crossbar by welding. The opening end face of the right handlebar slot of the integrated vertical bar is fixed to the outer circumference of the right crossbar, and the inner wall of the cavity of the integrated vertical bar is fixed to the end face of the right crossbar by welding.

2. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 1, characterized in that: The left crossbar of the left handlebar and the right crossbar of the right handlebar are both hollow tubular structures, and the inner diameter of the left and right crossbars is smaller than the inner diameter of the left and right ends of the cavity of the one-piece vertical bar.

3. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 1 or 2, characterized in that: The left outer weld (4) between the end face of the left handle slot and the outer circumference of the left crossbar, the right outer weld (5) between the end face of the right handle slot and the outer circumference of the right crossbar, the left inner weld (6) between the end face of the left crossbar and the inner circumference of the cavity, and the right inner weld (7) between the end face of the right crossbar and the inner circumference of the cavity are all formed into smooth transition surfaces by grinding.

4. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 2, characterized in that: The left crossbar has a notch structure on its end sidewall, forming a left stress relief notch (23), and the right crossbar has a notch structure on its end sidewall, forming a right stress relief notch (33). The inner sides of the left and right handle slots of the integrated vertical bar are respectively provided with a left protrusion and a right protrusion. The left protrusion can be inserted into the left stress relief notch, and the right protrusion can be inserted into the right stress relief notch.

5. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 2, characterized in that: The left and right crossbars are respectively provided with a left inlet (24) and a right inlet (34) communicating with their inner holes. The left brake cable installed on the left handlebar can enter the left crossbar through the left inlet and extend out through the hollow notch on the side wall of the integrated vertical bar cavity. The right brake cable installed on the right handlebar can enter the right crossbar through the right inlet and extend out through the hollow notch on the side wall of the integrated vertical bar cavity.

6. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 5, characterized in that: The integrated vertical rod cavity is also fixedly installed with a mechanical brake lever and hydraulic disc adapter (8). The mechanical brake lever and hydraulic disc adapter is provided with a left brake cable through hole (81) and a right brake cable through hole (82). The right end of the left brake cable through hole is provided with a left cable clamp (83), and the right end of the right brake cable through hole is provided with a right cable clamp (84). The left cable clamp can clamp and fix the left brake cable inserted from the left end of the left brake cable through hole, and the right cable clamp can clamp and fix the right brake cable inserted from the right end of the right brake cable through hole. The mechanical brake lever and hydraulic disc adapter is also provided with a front disc oil pipe (85) and a rear disc oil pipe (86). The front disc oil pipe is connected to the right brake cable through hole, and the rear disc oil pipe is connected to the left brake cable through hole. Pulling the left brake cable can drive the rear disc oil pipe to perform hydraulic disc braking, and pulling the right brake cable can drive the front disc oil pipe to perform hydraulic disc braking.

7. The integrated aluminum alloy handlebar and vertical bar structure for road bikes according to claim 6, characterized in that: The hollowed-out sidewall of the integrated vertical rod cavity has a left protrusion (16), a right protrusion (17), a front contoured contact surface, and a rear contoured contact surface. A connecting post (18) is fixedly formed on the bottom surface of the integrated vertical rod cavity opposite to the hollowed-out sidewall. The connecting post has at least two connecting screw holes (19). The mechanical brake lever and hydraulic disc adapter can be inserted into the cavity of the integrated vertical rod through the hollowed-out sidewall. The left and right protrusions can respectively abut against the left and right sidewalls of the mechanical brake lever and hydraulic disc adapter. The front and rear contoured contact surfaces can respectively abut against the front and rear sidewalls of the mechanical brake lever and hydraulic disc adapter. The mechanical brake lever and hydraulic disc adapter have at least two through holes spaced apart. Each through hole has a connecting screw. The connecting screws are screwed into the connecting screw holes on the connecting post to fix and position the mechanical brake lever and hydraulic disc adapter.

8. The integrated aluminum alloy handlebar and vertical bar structure for road bikes according to claim 1, characterized in that: The fork steerable connecting sleeve has an opening slot (111) extending squarely along its generatrix on its side wall. The fork steerable connecting sleeve also has a notch (112) extending squarely along its circumference on its side wall. The notch and the opening slot intersect perpendicularly to form a cross-shaped structure. The notch divides the side wall of the fork steerable connecting sleeve on both sides of the opening slot into upper and lower sections. Locking threaded holes (113) are formed on the two side walls of the fork steerable connecting sleeve on one side of the opening slot, and locking through holes (114) are formed on the two side walls of the fork steerable connecting sleeve on the other side of the opening slot. Locking screws are inserted into the locking through holes and are movably screwed into the locking threaded holes. Rotating the locking screws can adjust the inner diameter of the fork steerable connecting sleeve, thereby clamping or loosening the fork steerable inserted therein.

9. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 1, characterized in that: The integrated vertical bar, left handlebar, and right handlebar are all integrally formed aluminum alloy structures.

10. The aluminum alloy integrated handlebar stem structure for a road bicycle according to claim 1 or 9, characterized by: The integrated vertical bar is welded to the left and right handlebars to form a single structure, and the surface is covered with a surface treatment layer.

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